Cú mèo Low-poly (thân thiện với máy in 3D)

The original model has some issues that are fixed by this remix:

1. Overhangs - Small regions in the model result in floating islands that would require support.
2. Steep angles - Many steep angles are fixed and now there are no print angles over 30 degrees.
3. Self-intersecting geometry - While not an issue for 3d print slicing software, self-intersecting geometry is undesirable in a final mesh model.